LOS ANGELES (AP) - Matt Damon's diaper bag, Julianne Moore's high chair, Elisabeth Hasselbeck's car seat and other celebrity baby hand-me-downs are going up for auction on eBay.

Famous parents donated their used baby items to Johnson's Celebrity Hand Me Down Auction, which will benefit such charities as March of Dimes, Save the Children, Zero to Three and Baby Buggy. The online auction begins April 29 and ends May 9.

Damon provided his black, messenger-style baby bag while Moore, a mother of two, donated a beachwood highchair that she calls her daughter Liv's special ''sit at the table with the grown-ups'' chair. Mariska Hargitay from ''Law & Order: Special Victims Unit'' gave an Adidas track suit outfit worn by her son, August.

''It is important to pass certain things on from one generation to the next,'' Hasselbeck, who donated a car seat, said in a statement. ''I still have a children's bracelet that my mother gave to me, which I will pass on to my daughter one day. There is something priceless about having certain things around you which tell a story.''

Other celebrities participating in the auction include ''Shark'' actress Jeri Ryan and recent mother Elisabeth Rohm.

By DERRIK J. LANG AP Entertainment Writer

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